85177255501 has 24 divisors (see below), whose sum is σ = 94803346176. Its totient is φ = 76450832640.

The previous prime is 85177255433. The next prime is 85177255567. The reversal of 85177255501 is 10555277158.

It is not a de Polignac number, because 85177255501 - 2²⁷ = 85043037773 is a prime.

It is a super-2 number, since 2×85177255501² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85177253501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1594261 + ... + 1646821.

It is an arithmetic number, because the mean of its divisors is an integer number (3950139424).

Almost surely, 2^85177255501 is an apocalyptic number.

85177255501 is the 168501-st hex number.

It is an amenable number.

85177255501 is a deficient number, since it is larger than the sum of its proper divisors (9626090675).

85177255501 is a wasteful number, since it uses less digits than its factorization.

85177255501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52853 (or 52840 counting only the distinct ones).

The product of its (nonzero) digits is 490000, while the sum is 46.

The spelling of 85177255501 in words is "eighty-five billion, one hundred seventy-seven million, two hundred fifty-five thousand, five hundred one".